The World of Production, Distribution, Exchange and Consumption

Mark says production is determined by the general natural laws, distribution by social accident. Exchange stands between the two as formal social movement. Consumption belongs outside of economics, except in so far as it reacts in turn upon the point of departure and initiates the whole process anew. But what marks is concerned with in is to try to talk about define the laws of motion. In order to do that he has to bracket all these other elements. So you can go on in this manner.